US6552896B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolytic capacitor and method for manufacturing the same
Assignee: Panasonic Holdings Corp
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Filing: 2000-10-26
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Granted: 2003-04-22
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Expires: 2020-10-26
Abstract
Abstract In the present invention, a capacitor element including a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer is provided with an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and the capacitor element including the organic compound is arranged inside a package. The oxide film is repaired with the organic compound as a solvent by an application of a dc voltage.
Inventors
- 👤 Emiko Igaki
- 👤 Seigo Shiraishi
- 👤 Masakazu Tanahashi
- 👤 Sachiko Nobori
- 👤 Hisataka Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:12
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G11/00; H01G11/22; H01G11/30; H01G11/48; H01G11/54; H01G11/56; H01G9/004; H01G9/008; H01G9/012; H01G9/022; H01G9/025; H01G9/04; H01G9/042; H01G9/07; H01G9/15; H01G9/26; Y; Y02; Y02E; Y02E60/00; Y02E60/13
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
109 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound provides an organic solvent at a temperature of said melting point, and thereby an electrolytic solution is provided having the organic solvent and ions eluted from the solid electrolytic layer.
Claim 2
Dependent Claim
109 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound provides an organic solvent at a temperature of said melting point, and thereby an electrolytic solution is provided having the organic solvent and ions eluted from the solid electrolytic layer.
Claim 3
Dependent Claim
21 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound has a melting point higher than 25° C.
Claim 4
Dependent Claim
29 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound is at least one selected from the group consisting of alcohol, phenol, ester, ether and ketone.
Claim 5
Dependent Claim
17 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound is a fatty acid.
Claim 6
Dependent Claim
16 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound is an amine.
Claim 7
Dependent Claim
23 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound has a boiling point of not lower than 200° C.
Claim 8
Dependent Claim
31 words
The solid electrolytic capacitor according to claim 1 , wherein the capacitor element further contains a substance having a reduction potential that is equal to or higher than a hydrogen-generating potential.
Claim 9
Dependent Claim
62 words
The solid electrolytic capacitor according to claim 7 , wherein the substance having a reduction potential that is equal to or higher than the hydrogen-generating potential is at least one selected from the group consisting of perchloric acids and their salts, permanganic acids and their salts, chromic acids and their salts, peroxodisulfuric acids and their salts, and a nitro group containing compound.
Claim 10
Dependent Claim
34 words
The solid electrolytic capacitor according to claim 7 , wherein the substance having a reduction potential that is equal to or higher than the hydrogen-generating potential is a substance discharging no gases by reduction.
Claim 11
Dependent Claim
33 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound is a nitro group containing compound having a reduction potential that is equal to or higher than a hydrogen-generating potential.
Claim 12
Dependent Claim
17 words
The solid electrolytic capacitor according to claim 1 , wherein the solid electrolyte is an electroconductive polymer.
Claim 13
Dependent Claim
20 words
The solid electrolytic capacitor according to claim 1 , wherein the package is a resin formed by molding or dipping.
Claim 14
Dependent Claim
40 words
The solid electrolytic capacitor according to claim 1 , wherein the organic compound is present in at least one selected from an interior of the solid electrolyte and an interface between the dielectric oxide film and the solid electrolytic layer.
Claim 15
Dependent Claim
94 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound is at least one selected from the group consisting of alcohol, ester, ether and ketone.
Claim 16
Dependent Claim
94 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound is at least one selected from the group consisting of alcohol, ester, ether and ketone.
Claim 17
Dependent Claim
21 words
The solid electrolytic capacitor according to claim 14 , wherein the organic compound has a melting point higher than 25° C.
Claim 18
Dependent Claim
23 words
The solid electrolytic capacitor according to claim 14 , wherein the organic compound has a boiling point of not lower than 200° C.
Claim 19
Dependent Claim
81 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., wherein the organic compound is an amine.
Claim 20
Dependent Claim
81 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., wherein the organic compound is an amine.
Claim 21
Dependent Claim
21 words
The solid electrolytic capacitor according to claim 17 , wherein the organic compound has a melting point higher than 25° C.
Claim 22
Dependent Claim
23 words
The solid electrolytic capacitor according to claim 17 , wherein the organic compound has a boiling point of not lower than 200° C.
Claim 23
Dependent Claim
100 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and a substance having a reduction potential that is equal to or higher than a hydrogen-generating potential, and wherein said substance discharges no gases by reduction.
Claim 24
Dependent Claim
100 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and a substance having a reduction potential that is equal to or higher than a hydrogen-generating potential, and wherein said substance discharges no gases by reduction.
Claim 25
Dependent Claim
21 words
The solid electrolytic capacitor according to claim 20 , wherein the organic compound has a melting point higher than 25° C.
Claim 26
Dependent Claim
23 words
The solid electrolytic capacitor according to claim 20 , wherein the organic compound has a boiling point of not lower than 200° C.
Claim 27
Dependent Claim
99 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound is a nitro group containing compound having a reduction potential that is equal to or higher than a hydrogen-generating potential.
Claim 28
Dependent Claim
99 words
A solid electrolytic capacitor comprising a package and a capacitor element inside the package, the capacitor element comprising a valve action metal, an oxide film layer formed on the surface of the valve action metal, and a solid electrolytic layer formed on the oxide film layer, wherein the capacitor element contains an organic compound having a boiling point of not lower than 150° C. and a melting point of not higher than 150° C., and wherein the organic compound is a nitro group containing compound having a reduction potential that is equal to or higher than a hydrogen-generating potential.
Claim 29
Dependent Claim
21 words
The solid electrolytic capacitor according to claim 23 , wherein the organic compound has a melting point higher than 25° C.
Claim 30
Dependent Claim
23 words
The solid electrolytic capacitor according to claim 23 , wherein the organic compound has a boiling point of not lower than 200° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-04-21 | 2006-10-21 | 2007-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-21 | 2010-10-21 | 2011-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-04-21 | 2014-10-21 | 2015-04-22 | $7700.00 | Window Closed / Lapsed |